Cita APA

Barnhart, C. L., & Barnhart, R. K. (1990). The world book dictionary. World Book.

Citación estilo Chicago

Barnhart, Clarence Lewis, and Robert K. Barnhart. The World Book Dictionary. Chicago: World Book, 1990.

Cita MLA

Barnhart, Clarence Lewis, and Robert K. Barnhart. The World Book Dictionary. World Book, 1990.